>> Moved up and did "make" again and that eventually failed with arg list too long.
>
> "arg list too long" rings the "ncargs defaults to 4" bell:
> $ lsattr -E -l sys0 -a ncargs
>
> We do have it set to 40 here, but on some AIX6.1 I've seen this set to 256:
> $ chdev -l sys0 -a ncargs=40